Spring hinge



C. BUCK.

SPRING HINGE. APPLICATION men-mes, me. RENEWED OCT. 15.1920.

Patented Aug. 15, 1922.

8W1 c/zar /es 5004f than t CHARLES BOOK, OF'CHIGAG-O,

ILLINOIS,

ASSIGNOR To ANDREW HOFFMAN, or

CHICAGO, ILLINOIS.

SPRING HINGE.

Specification of Letters Patent. Patented A'ug- 15 1922;

Application filed. August 6, 1918, Serial No. season. Renewed October 15, 1920. Serial No. times,

1 0 all whom it may concern:

Be it known that I, CHARLES Boo a citizen of the United States, residing at Chicago, in the county ofCook and State of Illinois, have invented new and useful Improvements in Spring Hinges, of which the following is a specification.

This invention relates to spring hinges applicable to swinging doors, and its object is to provide a novel -and improved hinge of this kind which is simple in construction,

and which also holds the door open after fully swung in either direction.

The object stated is attained bymeans of a combination and arrangement of parts to be hereinafter described and claimed, and in order that the same may be better understood, reference is had to the accompanying drawing forming a part of this specification.

In the drawing, v

Figure 1 is a vertical section of the hinge;

Fig. 2 is a horizontal section on the line 2-2 of Figure 1; and

Fig. 3 is an elevationof a hinge pin and a spring associated therewith. I

Referring specifically tov the drawing, the frame of thehinge is composed of two L.- shaped pieces of strap iron which are riveted or otherwise rigidly connected to form an open rectangular frame having a top'5, a bottom 6, a front side 7 and a rear side 8. This frame is set in a hole made in the corner of the door 9, and it is covered by a- U-shaped plate 10 placed to extend over the front wall 7, and the open inner and outer sides of the frame. Screws or other suitable fasteners 11 secure this assembly of parts in the hole made in the door.

A. hinge rodor pin 12 extends between the top 5 and the bottom 6 of the frame, its lower end having a reduced portion 13 stepped in a hole in the part 6. The upper Spring having 1 v s assassins hooks 17 and 18, respectively. Thetop I hook 17 slips over an abutment19 in the"; shape of an angle piece fastened to the topof the frame part 7 and the bottom hook 18 slips overa similar abutn1ent2O fast tened'to the bottom of the frame part8;

The two hooked ends" of the springs are on diametrically opposite sides of the pin 12, and the latter also carries laterally outstanding fingers 21 and 22 overwhich thespring ends pass. Thus, it will be seen that swinging the door 9 in either direction winds the spring 16, so th'atwhenthe door is releasechthe tension of the spring causes the door to swlngto'closedposition.

When the door 9 is swung in one direction I the spring 16 is Wound by the engagement I ofthe top abutment 19 jwithqthe top hooked end 17 of the spr1ng, and the lower hooked end 18 ofthespring is held stationary by the finger 2 1, the lowerab-utment 20 now swing ing away from the latterend of the spring.

IV hen the door i s swungin the opposite di-.' 7

stationary. The hooked ends of the springs therefore havea dual function,.i. e.,'to be engaged by the abutments and to abut against the fingersextending outward from the hinge pin 12; I

The ends of the bottom finger'21 project I from diametrically opposite sides of the pin 12 and the end 21 extends intothe path of a resilient latch member composed of a pair of:curved-opposite spring fingers 23Ssecured to the frame part 7 so'that the free ends 2 1 of said springs bear against theprojecting end 21 of the finger when the door approaches the open. position, one of ithe' spring ends coming into operation when.

the door is swung in one direction, and tl1e other spring end when the door is swung that the tension of the spri1'ig23 must be suf icient to hold the door against the tension of the hinge spring- 16. Theend of expensive in construction, it can be easily appliec, and it effectually serves the purpose for which it is designed.

1 claim:

1. A spring hinge for doors, comprising a hinge pin, a supporting frame carrying said pin, a spring coiled around the pin and anchored at its ends to the frame, a finger extending laterally from the pin, and a resilient latch member carried by the frame and engageable by the finger when the door is open to so hold the same.

2. A spring hinge for doors,comprising a hinge pin, a supporting frame carrying said pin, a spring coiled around the pin and having projecting end portions, abutments on the frame engaging said end portions of the springs, abutments on' the pin also engaging the end portions of the springs, one pair of the aforementioned abutments being movable for tensioning the spring, and the other pair of abutments holding the spring ends stationary, one end being held while the other end is being wound by the first mentioned pair of abutments, and a resilient latch member carried by the frame and engageable by one of the pin abutments when the door is open to so hold the same.

3. A spring hinge for doors comprising a frame, a hinge pin journaled in the frame and having one end projecting beyond the frame and formed for interlocking engagement with a lintel plate or the like, a spring coiled about the pin within the frame and having hook-like terminals oppositely opening in an unwinding direction, studs projecting from the frame into engagement with the spring terminals, and fingers projecting from the hinge pin into engagement with the spring terminals.

i. A mortise spring hinge for doors comprising a shallow open sided frame, a hinge pin journaled adjacent its ends in the frame and having one end projecting beyond the frame and formed for interlocking engagement with a lintel plate or the like, a spring coiled about the pin within the frame and having hook-like terminals oppositely opening in an unwinding direction, studs projecting from the frame into engagement with the spring terminals, and fingers projecting from the hinge pin in a plane par allel to and closely adjacent to the studs for engagement with the spring terminals.

5, A spring hinge for doors comprising a frame, a hinge pin journaled in the frame and having one end projecting beyond the frame and formed for interlocking engagement with a lintel plate or the like, a spring coiled about the pinwithin the frame and having hook-like terminals oppositely opening in an unwinding direction, studs projecting from the frame into engagement with the spring terminals, lingers projecting from the hinge pin into engagement with the spring terminals, and a resilient latch member carried by the frame and engageable by the finger when the door is open to so hold the same.

6. A mortise spring hinge for doors comprising a shallow frame, a hinge pin journaled adjacent its ends in the frame and having one end projecting eyond the frame and formed for interlocking engagement with a lintel plate or the like, aspring coiled about the pin within the frame and having hook-like terminals oppositely opening in an unwinding direction, studs projecting from the frame into engagement with the spring terminals,fingers projecting from the hinge pin in a plane parallel to and closely adj acent the studs for engagement with the spring terminals, and a resilient bifurcated latch member carried by the frame and embracing the pin, the arms of the latch member engageable by oppositely disposed fingers when the door is open to hold the same when swung in either direction.

7. if mortise spring hinge for doorscomprising a shallow frame adapted to be housed in one corner of the door, a hinge pin journaled adjacent its ends in the frame and having a securing portion projecting beyond the frame and the door end, a lintel plate having an aperture for accommodating the securing portion of the'pin, a spring loosely coiled about the pin within the frame and'having hoololike terminals oppositely opening in an unwinding direction, studs projecting from the frame into engagement with the spring terminals, fingers projecting from the hinge pin in a plane parallel to and closely adjacent the studs for engagement with. the spring terminals.

8. A mortise spring hinge for doors comprising a shallow frame adapted to be housed in one corner of the door, a hinge pin journaled at its ends in the frame and having one end projecting beyond the frame and the door end and terminating in a securing portion, a lintel plate having an aperture for accommodating the securing portion of the pin, a spring loosely coiled about the pin within the frame and having hoolrlilre terminals oppositely opening in an. unwinding direction, studs projecting from the frame into engagement with the spring terminals, fingers projecting from the hinge pin in a, plane parallel to and closely adjacent the studs for engagement with the spring terminals, and a resilient bifurcated latch member carried by the frame and embracing the pin in the plane of one of the fingers whereby to frictionally engage the finger to hold the door open in either direction of its swing.

9. A spring hinge for doors comprising a frame, a hinge pin journalled 1n the frame and having one end projecting beyond the.

same and formed for interlocking engagement with a lintel plate or the like, a spring unwinding direction a stud projecting "from 15 the frame-for engagementwith the spring terminal and a finger pro ecting from the hinge pin for engagement with the spring terminal.

In testimony whereof I affix my signature. 20

CHARLES BOOK. 

